See what I mean? You gotta be crazy. Ain't no time to be sane.

Reality is just a crutch for people who can't handle drugs.

If you think anyone is sane you just don't know enough about them.

Your own brain ought to have the decency to be on your side!

The cab driver is staring at me in his mirror. I'm talking to myself.
"The second sign of madness," I explain.
"What's the first one?"
"Killing lots of people and eating their genitals."
He laughs and sneaks another look at me.

Insanity is often the logic of an accurate mind overtasked. Good mental machinery ought to break its own wheels and levers, if anything is thrust among them suddenly which tends to stop them or reverse their motion. A weak mind does not accumulate force enough to hurt itself; stupidity often saves a man from going mad.